NASA LogoNTRSNTRS - NASA Technical Reports ServerSearchmore_vertCollectionsAboutNewsHelpLogin Back to ResultsAdvanced rotorcraft transmission programThe Advanced Rotorcraft Transmission (ART) program is an Army-funded, joint Army/NASA program to develop and demonstrate lightweight, quiet, durable drivetrain systems for next generation rotorcraft. ART addresses the drivetrain requirements of two distinct next generation aircraft classes: Future Air Attack Vehicle, a 10,000 to 20,000 lb. aircraft capable of undertaking tactical support and air-to-air missions; and Advanced Cargo Aircraft, a 60,000 to 80,000 lb. aircraft capable of heavy life field support operations. Both tiltrotor and more conventional helicopter configurations are included in the ART program. Specific objectives of ART include reduction of drivetrain weight by 25 percent compared to baseline state-of-the-art drive systems configured and sized for the next generation aircraft, reduction of noise level at the transmission source by 10 dB relative to a suitably sized and configured baseline, and attainment of at least a 5000 hr mean-time-between-removal. The technical approach for achieving the ART goals includes application of the latest available component, material, and lubrication technology to advanced concept drivetrains that utilize new ideas in gear configuration, transmission layout, and airframe/drivetrain integration. To date, candidate drivetrain systems were carried to a conceptual design stage, and tradeoff studies were conducted resulting in selection of an ART transmission configuration for each of the four contractors. The final selection was based on comparative weight, noise, and reliability studies. A description of each of the selected ART designs is included. Preliminary design of each of the four selected ART transmission was completed, as have mission impact studies wherein comparisons of aircraft mission performance and life cycle costs are undertaken for the next generation aircraft with ART and with the baseline transmission.Document ID19910012218Acquisition SourceLegacy CDMSDocument TypeConference PaperAuthorsBill, Robert C.*(NASA Lewis Research Center Cleveland, OH, United States)*Date AcquiredSeptember 6, 2013Publication DateJanuary 1, 1990Subject CategoryMechanical EngineeringReport/Patent NumberAVSCOM-TR-90-C-015NAS 1.15:103276E-5722NASA-TM-103276AD-A235915Meeting InformationMeeting: Annual American Helicopter Society ForumLocation: Washington, DCCountry: United StatesStart Date: May 21, 1990Accession Number91N21531Funding Number(s)PROJECT: DA PROJ. 1L1-62211-A-47-APROJECT: RTOP 505-62-0KDistribution LimitsPublicCopyrightWork of the US Gov. Public Use Permitted.Available DownloadsNameType19910012218.pdfSTIcloud_downloadcontent_copyvisibilityRelated RecordsThere are no records associated with this record.visibility_offNo Preview Available
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